ULN2803 circuit drives four 12V high-quality relays Signal LEDs for each relay help you to determine relay state Seven screw terminals allow safe and clean connection to relays Cost-effective solution for turning your prototype into a simple PLC system Mounting holes for easy integration into your final product The Relay 4 Board is a cost-effective solution for adding relays to your device. A single ULN2803 driver IC with eight Darlington arrays drives each of the four available relays. Screw terminals allow you clean and easy output relay connectivity, and a standard IDC10 connector is used for connection with development boards. Use this board with your MCU to turn on lightbulbs, DC motors, or any other device that draws up to 16A of current and up to 250V. This board allows your device to jump over the boundary of output digital signals into the world of higher voltages and currents. The relays must be powered with a 12V supply via the board's two-pole screw terminal. Note: Do not confuse this board with the other board we carry called Relay 4, from a different manufacturer. 4x Relay Board Resources
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